XML 13 R7.htm IDEA: XBRL DOCUMENT v2.4.0.6
Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName FlexShares Trust
Prospectus Date rr_ProspectusDate Sep. 12, 2012
Document Creation Date dei_DocumentCreationDate Oct. 10, 2012